The doctor entered at that moment.
Bob had sense enough to see that he was suspected by Luiga, and so he must remove that suspicion and trust to Tempest to find an excuse for the English doctor.
Luiga was close to the cabin when the doctor entered, and all his suspicions vanished when he heard Tempest say:
"Ah, doctor! Bob has been trying to make me understand what you want for poor Scarron. A doctor's prescription is usually hard to read, but Bob's is worse."
It so happened that the doctor had really commissioned Bob to ask Tempest for an extra allowance of grog for Scarron.
The English doctor was one of the garrulous kind, who gloried in the sound of his own voice.
"Smart boy, that Bob. I should say he is a real good fellow."
"Yes, as true as steel, though no great friend of your nation, doctor."
Luiga stayed no longer.